Looked up my ex-boyfriend's Megan's Law profile in my hometown's police station, hands twitching. Back then, you had to write down the reasons for using the computers to look someone up. I wrote, "Finding out background for friend." It wasn't there.

Usually at Social Minefield we discuss ways to interact with people, but today we'll be talking about how not to interact — specifically, how to get alone time when you need it. People who are introverted may find that they need regular bouts of solitude to recharge, but everybody needs a breather from company…